modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/staging/media/tegra-video/csi.c
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@@ -420,7 +420,7 @@
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 	chan->csi = csi;
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 	chan->csi_port_num = port_num;
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 	chan->numlanes = lanes;
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-	chan->of_node = node;
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+	chan->of_node = of_node_get(node);
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 	chan->numpads = num_pads;
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 	if (num_pads & 0x2) {
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 		chan->pads[0].flags = MEDIA_PAD_FL_SINK;
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@@ -435,6 +435,7 @@
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 	chan->mipi = tegra_mipi_request(csi->dev, node);
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 	if (IS_ERR(chan->mipi)) {
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 		ret = PTR_ERR(chan->mipi);
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+		chan->mipi = NULL;
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 		dev_err(csi->dev, "failed to get mipi device: %d\n", ret);
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 	}
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@@ -620,6 +621,7 @@
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 			media_entity_cleanup(&subdev->entity);
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 		}
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+		of_node_put(chan->of_node);
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 		list_del(&chan->list);
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 		kfree(chan);
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 	}